Old G80's

jetlag said:

I have a question:
Why can I not find any G80's (single use) with a 4 second delay? I need the short delay for my NCR Bomarc. Not a Level 1, so I have to use these.
Allen

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You can shorten the delay on a single-use motor. Just temporarily remove the black powder.

DeeRoc29 said:

Derailing the thread a bit here but I just realized that if I put seven of the new 137 Ns G80T's in my THOY Nighthawk, it's like adding an eighth motor compared to the old G80's (pic here). Time to place an order from BMS, I think.

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Thats cool to see a Nighthawk still in service! Mine is in retirement after 7 F50SS toasted the motor mount at Danville many years ago.

solid_fuel said:

This forum is not run by the government . . .

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Yet.

Bat-mite said:

Philosophically, I can't see how NAR/CAR/TRA would decertify a motor that was once certified. If it was certified, it was tested and verified and sold as certified. sure, it may not be the same as a G80 build 20 years later, but it was still certified when it was sold. It would not make sense to me to say that a certified motor is decertified just because it has sat on a shelf.

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Sorry for the delay in response, but I just now noticed bat-mite's message. De-certification of a certified motor is reserved for situations in which an abnormally high incidence of CATO's or other safety problems (like ejection charge failures) occurs and the manufacturer does nothing about it. A VERY rare occurrence! Manufacturers are keenly aware of failure reports and warranty claims, so they almost always react to production run failures very quickly. Motors are not decertified based on time since last certification testing or time since they were last produced.
This is why it is very important for everybody, at all levels from 1/8A to O motor rocketry, to participate in the MESS process and report all motor malfunctions! We are working on a way to get the MESS data available for public inspection in some meaningful way, but until that time please be assured that TMT and NAR S&T is looking at all of these reports. It is vitally important that we see the day stamp/lot number information on the motor packaging, so please save all of your packaging materials until after the flight. Also, if the malfunctioning motor is a reload kit, please report the day stamp/lot number of the reload, not the metal case.

Alan Whitmore
Chair, TMT

Its Its similar to the old 40ns e15 they went to a molded case and became a 35ns e20, however they also sell them as e15s...